Solidity Developer

Technology Stack: React.js, Next.js, Jotai, react-query, Tailwind, SCSS, Jest, Webpack, Eslint, TypeScript, Git (Gitlab), Web-GRPC ●​ Achievements: ○​ Successfully started and released Next.js app from scratch○​ Initiated and led development and deployment processes. ○​ Developed major features for the main app landing website, focusing on user experience and functionality. ●​ Responsibilities: ○​ Developed and enhanced features for the main app landing website, focusing on user experience and functionality.

Technology Stack: React.js, Next.js, Nest.js, Redux Toolkit, SCSS, Jest, Webpack, Eslint, TypeScript, PostgreSQL, Kafka, Redis, Git (Github/Gitlab) ●​ Achievements: ○​ Successfully established a robust Node.js back-end infrastructure, developing over ten microservices to enhance system modularity and performance. ○​ Led the development of three comprehensive front-end projects from inception to deployment, ensuring high-quality user interfaces and experiences. ○​ Built and mentored a six-member front-end team, fostering a collaborative and productive work environment. ●​ Responsibilities: ○​ Spearheaded multiple high-profile crypto projects, including Oxygen.org, Maps.me, and Nitrogen wallet, taking on roles as a front-end, back-end, and full-stack developer. ○​ Conducted interviews and hired top talent for key front-end positions, ensuring the team was equipped with skilled professionals. ○​ Maintained effective communication and collaboration with various open-source teams to integrate and leverage the latest technologies. ○​ Developed and maintained complex web front-end applications using React.js and Next.js, and built back-end servers with Nest.js. ○​ Oversaw team operations, provided technical guidance, and ensured project deliverables were met on time and within scope.

Technology Stack: React.js + Redux, Redux-thunks/Redux-saga, Nest.js, SCSS/Stylus, Jest/Enzyme/Cypress, Webpack, Eslint, TypeScript, Git (Bitbucket/Gitlab) ●​ Achievements: ○​ Successfully led four front-end teams simultaneously, ensuring high productivity and project delivery. ○​ Contributed to over ten front-end projects and four back-end projects, demonstrating versatility and technical expertise. ○​ Initiated and executed a seamless transition from JavaScript to TypeScript for all new and non-legacy projects, enhancing code quality and maintainability. ●​ Responsibilities: ○​ Acted as a team leader on various high-impact projects, providing technical direction and oversight. ○​ Conducted interviews and recruited top-tier talent for critical positions, strengthening the team's capabilities.○​ Developed and maintained applications using the specified technology stack, ensuring adherence to best practices and coding standards. ○​ Assessed and planned work for new projects, defining technical requirements and deliverables. ○​ Managed team operations, fostering a collaborative and efficient work environment to achieve project goals.

Technology Stack: Crypto-currencies libraries (web3, nem-sdk, ledger-wallet-provider, ethereumjs-wallet, bitcoinjs-lib, truffle-contract, eth-crypto, ethereumjs-abi), React.js + Redux, SCSS, Webpack, Eslint, Git (Github) ●​ Achievements: ○​ Successfully led a front-end team, driving the development and implementation of innovative solutions. ○​ Contributed to two major projects, showcasing strong project management and technical skills. ○​ Developed the ChronoWallet Single Page Application (SPA), which supports multiple blockchains including Ethereum, Bitcoin, Bitcoin Cash, Bitcoin Gold, Litecoin, Waves, and Nem. ●​ Responsibilities: ○​ Designed and modified web user interfaces for single-page applications using React.js and Redux, ensuring high performance and user engagement. ○​ Utilized Webpack to build and optimize the application, enhancing load times and overall efficiency. ○​ Conducted interviews and recruited top talent for key positions, ensuring the team was equipped with skilled professionals. ○​ Collaborated closely with cross-functional teams to define requirements and deliverables, ensuring alignment with business goals. ○​ Maintained code quality through rigorous testing and code reviews, adhering to best practices and industry standards.

Technology Stack: React.js + Redux, TypeScript, SCSS, Webpack, Angular 1.*, JavaScript, HTML, CSS, Gulp, Java EE on backend, Git (Bitbucket) ●​ Projects: ○​ Sberbank: ■​ Responsibilities: ■​ Guided and mentored a team of seven developers, providing technical leadership and support. ■​ Designed and modified web user interfaces for single-page applications using React.js and Redux. ■​ Conducted interviews to recruit top talent for key positions. ○​ Arrow (SamCar): ■​ Responsibilities: ■​ Developed single-page applications for the SamCar project using Angular 1.4.3. ■​ Designed responsive web app layouts, ensuring optimal user experience across devices.■​ Automated build processes for the front-end, enhancing development efficiency. ■​ Developed major features and components, including real-time telemetry displays with Google Charts and WebSocket-based client-server data transfer. ○​ QMS 2.0: ■​ Responsibilities: ■​ Designed and modified web user interfaces for the QMS project using AngularJS 1.x. ■​ Managed overall page layout and structure, ensuring a cohesive and user-friendly design. ■​ Conducted rigorous testing using Protractor and Karma to ensure high-quality and bug-free applications.

Technology Stack: CMS 1C Bitrix, PHP, JavaScript, HTML, CSS, Git ●​ Responsibilities: ○​ Participated in over 100 projects involving big data and high-load systems, demonstrating versatility and expertise. ○​ Developed web applications using CMS 1C Bitrix and PHP, delivering high-quality solutions tailored to client needs. ○​ Conducted requirements analysis and negotiated with customers to ensure alignment with business goals and expectations. ○​ Implemented the visual design and functionality of portals, enhancing user experience and engagement. ○​ Integrated payment systems and social networks into websites, broadening functionality and user interaction. ○​ Provided ongoing customer support, addressing technical issues and ensuring client satisfaction.

Technology Stack: CMS 1C Bitrix, PHP, JavaScript, HTML, CSS ●​ Responsibilities: ○​ Developed web applications using CMS 1C Bitrix, contributing to the company’s portfolio of web solutions. ○​ Provided technical support to ten sites, ensuring continuous operation and addressing any issues promptly.